Question

$\frac{a+b}{b} =\frac{9}{2} ademas a-b=35 , calcular "a"$

Answer 1

Respuesta:

a) a = 49

Explicación paso a paso:

(a + b)/b = 9/2

2*(a + b) = 9*(b)

2*a + 2*b = 9*b

2*a = 7*b

(2/7)*a = b

a - b = 35

a - (2/7)*a = 35

(5/7)*a = 35

a = 35*7/5

a = 49